Radeon HD 7870 XT vs Radeon VII

Intro

Compare those specifications to the Radeon VII, which makes use of a 7 nm design. AMD has set the core speed at 1400 MHz. The HBM2 memory works at a speed of 1000 MHz on this model. It features 3840 SPUs as well as 240 TAUs and 64 ROPs.

Display Graphs

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

Radeon VII		27400 points
Radeon HD 7870 XT		6390 points
	Difference: 21010 (329%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7870 XT		185 Watts
Radeon VII		295 Watts
	Difference: 110 Watts (59%)

Memory Bandwidth

Theoretically, the Radeon VII should perform much faster than the Radeon HD 7870 XT in general. (explain)

Radeon VII		1048576 MB/sec
Radeon HD 7870 XT		192000 MB/sec
	Difference: 856576 (446%)

Texel Rate

The Radeon VII is much (approximately 278%) faster with regards to texture filtering than the Radeon HD 7870 XT. (explain)

Radeon VII		336000 Mtexels/sec
Radeon HD 7870 XT		88800 Mtexels/sec
	Difference: 247200 (278%)

Pixel Rate

The Radeon VII should be much (approximately 203%) more effective at full screen anti-aliasing than the Radeon HD 7870 XT, and also will be capable of handling higher resolutions more effectively. (explain)

Radeon VII		89600 Mpixels/sec
Radeon HD 7870 XT		29600 Mpixels/sec
	Difference: 60000 (203%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

Price Comparison

Specifications

Memory Bandwidth: Bandwidth is the maximum amount of data (counted in MB per second) that can be moved past the external memory interface in a second. The number is worked out by multiplying the card's bus width by its memory speed. If it uses DDR type RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed per second. This is calculated by multiplying the total texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.